Pioneer PRA-BD11 Service Manual page 73

5
Pin Descriptions
NUMBER SYMBOL
1-10 PD9 - PD0
11 PCLKIN
12 V
EE3
13 V
CC3
14 RSV2
15, 19, 21, 27, NC
28, 30, 32, 37
16 RSV1
17 V
CC2
18 V
EE2
20 LOCK
22 R
SET
23, 26, 29 V
EE
24, 25 SDO, SDO
31 BYPASS
33 RESET
34 V
CC1
35 V
EE1
36, 38 R +, R -
VCO VCO
39, 43 V
EE
40 LBWC
41, 42 LF+, LF-
44 SYNC DIS
5
6
TYPE
I CMOS or TTL compatible parallel data inputs. PD0 is the LSB and PD9 is the MSB.
I CMOS or TTL compatible parallel clock input.
- Most negative power supply connect ion for parallel data and clock inputs.
- Most positive power supply connect ion for parallel data and clock inputs.
I Reserved pin. Do not connect.
I No connect.
I Reserved pin. Always connect to V
- Most positive power supply connection for internal logic and digital circuits.
- Most negative power supply connection for internal logic and digital circuits.
O TTL level which is high when the internal PLL is locked.
I External resistor used to set the data output amplitude for SDO and SDO.
- Most negative power supply connect ion for shielding (not connect ed).
O Primary, current mode, 75
I When high, the SMPTE Scrambler and NRZ encoder a re bypasse d.
I Resets the scrambler when asserted.
- Most positive power supply connect ion for analog circuits.
- Most negative power supply connect ion for analog circuits.
I Differential VCO current setting resistor that sets the VCO frequency.
- Most negative power supply connect ion (substrate).
I TTL level loop bandwidth control that adjusts the PLL bandwidth to optimize for lowest
jitter. If the pin is set to ground the loop bandwidth i s BW
loop bandwidth is approximately 3 BW
approximately10 BW
MIN
I Differential loop filter pins to optimize loop transfer performance at low loop bandwidths
(NC if not used).
I Sync detect disable. Logic high di sables sync detection. Logic low allows 8 bit operation
by mapping 000-003 to 000 and 3FC-3FF to 3FF .
PRA-BD11
6
7
DESCRIPTION
.
CC
Ω
cabl e driving output (inverse and true)
MIN
, if the pin is tied to V
MIN
7
8
. If the pin is left floating, the
the loop bandwidths
CC
8
A
B
C
D
E
F
73